MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e3547a9ad0bf089bfa543bed3a91acb0c4619b2319f09f73c1a1f8bedb66e297. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

Formbook

Vendor detections: 9

Intelligence 9 IOCs YARA 15 File information Comments

SHA256 hash:	e3547a9ad0bf089bfa543bed3a91acb0c4619b2319f09f73c1a1f8bedb66e297
SHA3-384 hash:	3ce517a5bfa9a23aa5b43ff44905b5688e9feac83114fea0ca28eb97fe069fc2cd60ce1636407aa1ad29d72e09d21cc2
SHA1 hash:	86b65ace6d4412305431d94d6f3da16122e548d6
MD5 hash:	77f04c605567f01a4cc4535948ab2487
humanhash:	papa-south-blue-video
File name:	Purchase Order.rar
Download:	download sample
Signature	Formbook Create hunting rule
File size:	610'307 bytes
First seen:	2025-03-04 17:05:14 UTC
Last seen:	2025-03-04 18:58:25 UTC
File type:	rar
MIME type:	application/x-rar
ssdeep	12288:aTKZUf693mIIA6rweTUauBsMy9L95pkzCMJEaWjlKz7Ri3nKn5Y7TT5IuI9p:a+P92rAaweTUauBsMydSfIi7Ri/7n5I7
TLSH	T153D4235696D9E81E2630AD7BC4CD5C3943696A09B6B0A1633DBB34FD1D30AC1E23E077
TrID	61.5% (.RAR) RAR compressed archive (v5.0) (8000/1) 38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika	rar
Reporter	cocaman
Tags:	FormBook rar

cocaman

Malicious email (T1566.001)
From: ""Sandy Hsieh"<sandy.hsieh@yanhing.com>" (likely spoofed)
Received: "from yanhing.com (unknown [195.211.191.192]) "
Date: "04 Mar 2025 10:56:16 -0800"
Subject: "RE: Purchase Order No. I20220052 Dt. 7.04.202"
Attachment: "Purchase Order.rar"

Intelligence

File Origin

# of uploads :

# of downloads :

106

Origin country :

File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:	Purchase Order.exe
File size:	1'105'920 bytes
SHA256 hash:	68eeebf088677c025da067485a8448bfa38f4b13c61e5e2c2ed717701df74222
MD5 hash:	90e97bfbbe0822974484610acfd46548
MIME type:	application/x-dosexec
Signature	Formbook

Vendor Threat Intelligence

Verdict:

Malicious

Score:

94.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67c70da9c8d04e92a4bee2b8

Tags:

autoit emotet

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

adaptive-context autoit compiled-script control evasive explorer fingerprint keylogger lolbin masquerade microsoft_visual_cc msiexec obfuscated packed packed packer_detected regedit

Link:

https://www.filescan.io/uploads/67c732cf4a3011c802c756e7/reports/22bfe28a-fae7-43b2-99aa-f7dcdfbec4c6/overview

Verdict:

Malicious

Labled as:

Ransom.Wacatac

Link:

https://www.hybrid-analysis.com/sample/e3547a9ad0bf089bfa543bed3a91acb0c4619b2319f09f73c1a1f8bedb66e297

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/e3547a9ad0bf089bfa543bed3a91acb0c4619b2319f09f73c1a1f8bedb66e297/

Threat name:

Win32.Trojan.AutoitInject

Status:

Malicious

First seen:

2025-03-04 16:28:14 UTC

File Type:

Binary (Archive)

Extracted files:

AV detection:

18 of 24 (75.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=4nkhvgwqx4ejx6suhpwtvenmwdcgdgzddhyj646buh4l5w3g4klq._file

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:mg63 discovery rat spyware stealer trojan

Link:

https://tria.ge/reports/250304-wve7xsw1e1/

Behaviour

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Formbook payload

Formbook

Formbook family

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/e3547a9ad0bf089bfa543bed3a91acb0c4619b2319f09f73c1a1f8bedb66e297

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	AutoIT_Compiled Create hunting rule
Author:	@bartblaze
Description:	Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__GlobalFlags Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__QueryInfo Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Active Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Thread Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SEH__vectored Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	SUSP_Imphash_Mar23_3 Create hunting rule
Author:	Arnim Rupp (https://github.com/ruppde)
Description:	Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:	Internal Research

Rule name:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)